Valve



UNITED STATES JOSEPH ROTHCHILD, OF NEW YORK, N. Y.,

PATENT OFFICE.

ASSIGNOR TO Jenn summons COMPANY,

A CORPORATION OF NEW YORK.

VALVE.

To all whom it may concern Be it known that I, Josnrnt Ro'rrroHILo, a citizen of the United States, residing at New York, county of Bronx, and State of New York, have invented certain new and useful Improvements in Valves, fully described and represented in the following specification and the accompanying drawings, forming a part of the same.

This invention relates to improvements in valve construction, and has for one of its objects to produce a valve construction in which the resistance set up by the fluid to the opening and closing of the valve is reduced to a minimum.

A further object of the invention is to produce a valve construction in which the wear and tear on the parts can be readily and cheaply compensated for, and in which a tight closing of the valve can be effected without fine fitting of the cooperating parts.

A further object of the invention is to produce a simple, cheap and effective valve construction in which the parts may be readily removed from the valve casing for refitting or replacement.

With these and other objects not specifically referred to in view, the invention consists in certain constructions and in certain parts, improvements and combinations as will be hereinafter fully described and then specifically pointed out.

Referring .to the drawings which illus' trate one-embodiment of the invention, and in which like reference characters indicate the same parts;

Figure 1 represents a valve casing and valve in sectional elevation, the valve being closed.

Fig. 2 is a section on the line 2 of Fig. 1, the top and hand wheel being broken away.

Fig. 3 is a section on the line 3 of Fig. 1.

Fig. dis a view similar to Fig. 1, the valve being open.

In the drawings, 1 represents the valve casing which may be of any suitable configuration. Constructions embodying the invention will include a seat which in the best constructions will be in the form of a block, as 2. which is supported in the easing and which has an area which is less than the area of the opening in the casing, so that a passage for the fluid, the flow of which is controlled by the valve, is provided between the edge of the block and the Specification of Letters Patent.

Patented Feb. 1, 1921.

1919. Serial No. 290,530.

wall of the casing. While the block may be varied in shape, in the particular c011- struction shown, the block is circular.

The means for supporting the seat or block in the casing may be varied, but in the best constructions this means will be such as to allow the seat or block-to have an adjusting movement. As shown, the cas-.

ing is provided with a cross bar 3 having an opening 4: therein and 'the block has a projection or stud 5 extending through the opening, said stud being slightly less in diameter than the opening in the bar. The block, therefore, can have a slight tipping or adjusting movement in any direction.

Constructions embodying the invention will also include a gate for-opening and closing the fluid passage around the edge of the block, the opening and closing movement of said gate being across the face of the block. In the best constructions embodying the invention this gate will, furthermore, be apertured. this gate is marked 6 and the aperture marked 7. It will of course be understood that the shape of the gate, which is marked 6, will vary according to the shape of the opening to be closed; Inthe best constructions embodying the invention, the casing will be provided with a tapered guide, as 8, with which the gate cooperates, and: that face of'the gate which cooperates with the guide will be tapered, the other face which cooperates with the fiat face of the block will be flat, so that the gate may be said to be wedge shaped. 7

Various means may be employed for moving the gate across the face of the block to open and close the aperture, but in the best constructions the connection between the gate and its moving means will be a loose connection. In the construction shown, the casing is provided with the usual bonnet 9 which is secured to the opening in the easing, and this bonnet is threaded as is usual to receive a threaded stem 10 terminating in a hand wheel 11. The lower end of the stem is provided with a circular flange 12 which takes into an open guideway formed by twoears 13 on the top of the gate.

With the construction as described, when the gate is closed, the position of parts being as shown in Fig. 1, it closes the fluid passage so that there can be no 'fiow'of water, steam or'other fluid through-the casing or pipes In the drawings with which the casing is connected. Vfhen, however, the valve is opened, the position of parts being as shown in the flu d flows around the edge of the block 2. It will be noted that when the direction of flow oi the fluid is toward the face of the block, as it will be when the construction is utilized to the best advantage, the fluid stream, when the gate is closed, impinges against the block and that the block takes nearly all the force or thrust of the stream, very little of it being exerted against the comparatively small area aiiorded by the surface of the gate. Further, inasmuch as, due to its wedge shape, the upper part or top of the opening in the gate is broader than the bottom, the component of the "force of the stream which is acting against the top of the of; ring is greater than that which is acting ag list the bottom, so that the component force of the stream is so exerted as to assist in opening the valve.

Very little resistance is, therefore, offered to the opening movement of the gate.

The parts are not only exceedingly cheap in construction and etlective in operation but because of the loose connection between the gate and its operating stem and the mounting of the block to provide for the tipping movement, there is a considerable amount of automatic adjustment of these parts. Slight irregularities on the parts are therefore compensated for and fine finish of the parts is not required to effect a tight closing of the valve. Further wear will be readily compensated for. it the face of the gate or the block wear, this wear can be compensated for by using a washer as 14 between the rear of the block and the bar which supports it. Considerable wear can be compensated for in this way as a plurality of washers or washers of various thicknesses can be used. If, however, refinishing or replacement of any of the working parts is necessary, the bonnet can be removed and the gate and block taken out and refinished or replaced by others.

As has been indicated, if the advantages of the construction are to be utilized to fullest extent, the casing should be so located in the pipe lines that the flow of the fluid to be controlled is toward the face of the block. lhe flow of the fluid, however, can be in a contrary direction, if desired. If, however, the flow is toward the back of the block instead of toward its face, the advan tage of a minimum resistance to the movement of the gate will not be fully realized.

Changes and variations may be made in the construction by which the invention is carried into effect. Th invention is not, therefore, to be confined to the particular construction herein shown and described.

What is claimed is:

1. In a valve, the combination with a cas ing, of a block located in the casing such block being less in area than the openmg 1n the being, whereby a fluid passage is provided, between the edge of the block and the interior part of the casing, and an aperturcd gate movable across the blocl-r to open and close the fluid passage.

2. 111 a valve, the combination with a casing, oi a block located in the casing said block being less in area than the opening of the casing whereby a fluid passage is provided l etween the edge of the block and the wall of the casing, means for loosely supporting the block in the casing, whereby the block is capable of adjusting movement, and an apertured gate movable across the block to open and close the fluid passage.

8. in a valve, the combination with a casing. 0' a block located in the casing and less in than the opening of the casing whereby a fluid passage is provided between the edge of the block and the wall of the casing, means for loosely supporting the block in the casing, whereby the block is capable of adjusting movement, and an apertured wedge gate movable across the block to open and close the fluid passage.

4. In a valve, the combination with a casing, of a block located in the casing, said blocks being less in area than the opening of the casing whereby a fluid passage is provided between the edge of the block and the wall of the casing, means for loosely supporting the block in the casing, whereby the block is capable of adjusting movement, an apertured wedge gate movable across the block to open and close the fluid passage, means for operating the gate, and a loose connection between the gate and its operating means.

In a valve, the combination with a casing, of a block located in the casing, said block being less in area than the casing opening whereby a fluid passage is provided between the edge of the block and the wall of the casing, means for loosely supporting the block in the casing whereby the block has an adjusting movement, and a wedge gate cooperating therewith to close the fluid passage.

6. In a valve, the combination with a casing, of a block located in the casing said block being less in area than the casing opening whereby a fluid passage is provided between the edge of the block and the wall of the casing, means for loosely supporting the block in the casing whereby the block has an adjusting movement, a wedge gate cooperating therewith to close the fluid passage, means for operating the gate and a loose connection between the gate and its operating means.

7. In a valve, the combination with a casing, of a block supported therein, said block having a flat face and'having an area which is less than the opening in the casing, whereby a fluid passage is provided between the edge of the block and the wall of the casing, a tapered guide in the casing, an apertured gate cooperating with the block and movable across the face thereof, said gate having a flat face on the side next the block, and a tapered face which cooperates with the tapered guide.

8. In a valve, the combination with a casing, of a block loosely supported therein so as to be capable of an adjusting movement, the block having a flat face and having an area which is less than the opening in the casing, whereby a fluid passage is provided between the edge of the block and the wall of the casing, a tapered guide in the casing, an apertured gate constructed to close the fluid passage, said gate having the face which is next the block fiat and the face which cooperates with the guide tapered, means for moving the gate across the face of the block, and a loose connection between the gate and its moving means.

9. In a valve, the combination with a casing, of a support extending across the easing, said support having an opening therein, a block having a stud extending through and loosely fitting in said opening and also having a plane face which is less in area than the opening in the casing whereby a fluid passage is provided between the edge of the block and the wall of the casing, a tapered guide in the casing, an apertured gate constructed to close the fluid passage, said gate having the edge which is next the block flat and its face which is next the guide tapered, means for moving the gate across the face of the block to open and close the fluid passage, and a loose connection between the gate and its operating means.

10. In a valve, the combination with a loosely mounted self-adjusting seat, of a gate cooperating therewith and operating means for said gate there being a loose or adjusting connection between the gate and its operating means, whereby irregularities are compensated for and fine fitting of the I parts is rendered unnecessary.

In testimony whereof I have hereunto set my hand.

JOSEPH ROTHCHILD. 

